3 rows multi colored

Anon

I have three TR that I would like to have in multi colors.
I managed a solution to do it with 2 colors using a control var, with the last used color, and doing a condition in the begining of the next loop to set the new color as a diferent one from the last one..

but I can't find a way to do it with three colors, something like

color1

color2

color3

color1

color2

color3

can someone give me some help ?

bouche

I guess you build the table dynamicly thru a loop or something, so what about putting the three colors in a array, and in the loop make a counter var like $i = 0; and increase it with on everything you loop, $i++; then you simply : print "<tr bgcolor=$array[$i]>"; and when it hit's 2 or 3 depending if you check before or after the output, just reset it. Not sure i explained this in a good way, so if i did'nt tell me, hehe.

Anon

Just to show it in simple code here is Bouche's solution:

$color_id = 0;
$colors = array("red", "green", "blue");
for ($i=0; $i<count($data_set); $i++) {
if ($color_id > 2) {
$color_id = 0;
}
print "<tr bgcolor=\"$colors[$color_id]\">";
print $data_set[$i];
print "</tr>\n";
$color_id++;
}

bouche

Thnx Rob, I did'nt have time to do it myself ;-)

smarlowe

Another way is to use a modulus operator. This operator gives the remainder from a division operation. The modulus operator is %, so, 5%3 = 1 with a remainder of 2. 6%3 = 2 remainder of 0, 7%3= 2 remainder of 1. So, we can use a for next loop and a counter, and never need to reset it, by doing this:

$colors=array("red","blue","white");
$max=1000;
for ($i=0;$i>$max;$i++){
print ">font color=";
print $colors[$i%3];
print ">".$data[$i];
}

Add tp this as necessary, but it's very easy to change this kind of thing to hand 2 or 200 colors.

Anon

Thanks guys, worked just fine..

Anon

What about 0,1,2?

0%3 = 0
1%3 = 33333333333333
2%3 = 66666666666667

Anon

Well, for the sake of dinamism, I would change a bit of code..

 if ($color_id > 2) {

I would do it as follows..

 if ( $color_id >= (count($colors)-1)) {

So, if we change it later to a four colors array, or more, it would work, and make the same effect ..